#define _CRT_SECURE_NO_WARNINGS 1
class Solution {
public:
    int findPeakElement(vector<int>& nums) {
        int left = 0;
        int right = nums.size() - 1;

        while (left < right)
        {
            int mid = left + (right - left) / 2;

            if (nums[mid] > nums[mid + 1])
            {
                right = mid;
            }
            else
            {
                left = mid + 1;
            }
        }
        return right;
    }
};